airtight container

A technology for sealing containers and sealing parts, which is applied in packaging sealing/fastening, chemical instruments and methods, household components, etc., can solve problems such as unstable barrier properties, achieve improved peel strength, inhibit the intrusion of deterioration accelerators, The effect of stabilizing barrier properties

Active Publication Date: 2016-11-23
株式会社レゾナックパッケージング
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a part of the linear contact portion has an unjoined portion, light, etc. will pass through it and penetrate into the interior at the shortest distance, so the barrier performance will become unstable

Method used

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Examples

Experimental program
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Embodiment Construction

[0076] [summary of airtight container]

[0077] figure 1 and figure 2 represents the state before the sealing process of the battery case 1 constituted based on the laminated packaging material, image 3 A battery 2 manufactured by sealing the above-mentioned battery case 1 is shown in . The sealed battery case 1 is an embodiment of the airtight container of the present invention. In addition, in the following description, light, oxygen, moisture, and the like that enter from the outside of the airtight container and degrade the contents are referred to as "deterioration accelerators".

[0078] The battery case 1 is formed by arranging two case halves 10a, 10b formed with the sealing peripheral portion 12 so that the opening of the recess 11 faces each other, and joining the overlapping sealing peripheral portions 12 . As a member of the housing portion 16 , the sealing peripheral edge portion 12 extends outward in a substantially horizontal direction from the opening per...

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PUM

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Abstract

PROBLEM TO BE SOLVED: To provide a sealed container ensuring high barrier performance stably.SOLUTION: Laminate wrapping materials (10a), (10b) formed by laminating a thermoplastic resin layer (14) on at least one surface of a barrier layer (13) are superimposed so that the thermoplastic resin layer (14) are located on the inside, and a housing section (16) is formed by bonding and sealing the peripheral edge of the superimposed laminate wrapping materials (10a), (10b) thus producing a sealed container. The sealing part (31) at the peripheral edge has a heat seal part (33) where the thermoplastic resin layer (14) is welded, and a large number of barrier layer joints (34) where the barrier layers (13) are bonded each other. The large number of barrier layer joints (34) are spotted without continuing into the heat seal part (33).

Description

[0001] This application claims priority based on Japanese Patent Application Japanese Patent Application No. 2012-189015 for which it applied on August 29, 2012, and makes the content of the indication a part of this application as it is. technical field [0002] The present invention relates to sealed containers used in battery cases such as lithium ion secondary batteries, retort pouches for various foods, and related technologies. Background technique [0003] For the packaging of the above-mentioned articles that do not like light, oxygen, and moisture, a hermetic container using a laminated packaging material in which a thermoplastic resin layer is laminated on a metal barrier layer that blocks light, oxygen, and moisture is used. Such as figure 1 and figure 2 As shown, the above airtight container 100 is usually produced by placing the thermoplastic resin layer 14 of the laminated packaging materials 10a, 10b on the inside, overlapping them, and heat-sealing the peri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65B51/10H01M2/02
CPCB29L2031/3468B32B27/08B65B51/10B65D75/30B65D77/20
Inventor 苗村正
Owner 株式会社レゾナックパッケージング
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